FOSSIL PLANTS FROM VERO. 
25 
QUERCUS BREVIFOLIA' (LAM.) SARGENT. BLUE JACK OAK. 
This species is represented in the Vero deposits by many char¬ 
acteristic leaves and by a few less certainly identified acorns and 
cupules. 
Its habitat now is sandy pine lands from North Carolina to 
Texas. I found it common around Vero, although Sargent gives 
its southern limit on the east coast as Cape Malabar, which is about 
50 miles north of Vero. 
QUERCUS CHAPMANI SARGEANT (?) 
This species is represented in the Vero deposits by a consider^ 
able number of immature acorns and cupules and is not certainly 
determined on that account, although the acorns are identical with 
the corresponding immature acorns and cupules of this species. I 
regard the identification as reasonably well authenticated. 
Querciis chapmani ranges from South Carolina to West Florida 
in sandy pine lands near the coast in the existing flora. It is com¬ 
paratively rare except in West Florida from Apalachicola to Pensa¬ 
cola Bay, and is unknown within hundreds of miles of Vero. This 
type of oak was already in existence in the Miocene (1) and the 
Vero occurrence may represent a collateral descendant of this Mio¬ 
cene ancestry. 
ORDER POLYGONALES. 
FAMILY POLYGONACEAE. 
GENUS POLYGONUM LINN. 
POLYGONUM SP. 
Achenes, identified for me by W. L. McAtee, represent this 
genus in the Vero deposits. They are not specifically determined. 
Polygonum contains over 200 existing species, mostly herbaceous 
and widely distributed. Many are swamp plants and a number 
occur in Florida. 
(1) Berry, E. W., U. S. Geol. Survey, Prof. Paper 98 F, p. 66, pi. 11, figs. 1, 2, 
1916. 
